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| 1 | +;; Copyright (C) 2015 Runtime Revolution Ltd. |
| 2 | + |
| 3 | +;; This file is part of LiveCode. |
| 4 | + |
| 5 | +;; LiveCode is free software; you can redistribute it and/or modify it |
| 6 | +;; under the terms of the GNU General Public License v3 as published |
| 7 | +;; by the Free Software Foundation. |
| 8 | + |
| 9 | +;; LiveCode is distributed in the hope that it will be useful, but |
| 10 | +;; WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | +;; General Public License for more details. |
| 13 | + |
| 14 | +;; You should have received a copy of the GNU General Public License |
| 15 | +;; along with LiveCode. If not see <http://www.gnu.org/licenses/>. |
| 16 | + |
| 17 | +;;;###autoload |
| 18 | +(add-to-list 'auto-mode-alist '("\\.mlc\\'" . livecode-mode)) |
| 19 | + |
| 20 | +(defvar livecode-mode-syntax-table |
| 21 | + (let ((st (make-syntax-table))) |
| 22 | + ;; Comments |
| 23 | + (modify-syntax-entry ?/ ". 14b" st) |
| 24 | + (modify-syntax-entry ?* ". 23b" st) |
| 25 | + (modify-syntax-entry ?\- "<" st) |
| 26 | + (modify-syntax-entry ?\n ">" st) |
| 27 | + ;; Angle brackets |
| 28 | + (modify-syntax-entry ?< "(" st) |
| 29 | + (modify-syntax-entry ?> ")" st) |
| 30 | + st) |
| 31 | + "Syntax table for LiveCode mode") |
| 32 | + |
| 33 | +(defvar livecode-keywords |
| 34 | + '("variable" "syntax" "begin" "end" "phrase" "operator" |
| 35 | + "foreign" "handler" "prefix" "postfix" "precedence" "statement" |
| 36 | + "undefined" "public" "neutral" "binds to" "optional" |
| 37 | + "any" "private" "if" "else" "then" "repeat" "metadata" "widget" "module" |
| 38 | + "version" "author" "title" "true" "false" "return" "as" "use" "type")) |
| 39 | + |
| 40 | +(defvar livecode-builtins |
| 41 | + '("output" "input" |
| 42 | + "bool" "boolean" |
| 43 | + "int" "number" "real" "double" "float" |
| 44 | + "string" "data" "list" "map" "pointer" "is" "empty")) |
| 45 | + |
| 46 | +(defvar livecode-font-lock-defaults |
| 47 | + (let ((symbol-regexp "\\_<\\(\\(?:\\s_\\|\\w\\)*\\)\\_>")) |
| 48 | + `(( |
| 49 | + ;; stuff between " |
| 50 | + ("\"\\.\\*\\?" . font-lock-string-face) |
| 51 | + |
| 52 | + ;; Keywords and builtins |
| 53 | + ( ,(regexp-opt livecode-keywords 'symbols) . font-lock-keyword-face) |
| 54 | + ( ,(regexp-opt livecode-builtins 'symbols) . font-lock-builtin-face) |
| 55 | + |
| 56 | + ;; "as" expressions |
| 57 | + ("\\_<as\\s-+\\(\\(?:\\s_\\|\\w\\)*\\)\\_>" 1 font-lock-type-face) |
| 58 | + |
| 59 | + ;; handler definitions including parameter names |
| 60 | + ( ,(concat "^\\s-*\\(\\_<\\(public\\|foreign\\)\\_>\\s-+\\)?\\_<handler\\_>\\s-+" symbol-regexp) |
| 61 | + (3 font-lock-function-name-face nil) |
| 62 | + ( ,(concat "\\(" (regexp-opt '("in" "out" "inout") 'symbols) "\\)" |
| 63 | + "\\s-+" symbol-regexp) |
| 64 | + nil nil |
| 65 | + (3 font-lock-variable-name-face) |
| 66 | + (2 font-lock-keyword-face))) |
| 67 | + |
| 68 | + ;; variable names |
| 69 | + ( ,(concat "^\\s-*\\_<variable\\_>\\s-*" symbol-regexp) |
| 70 | + (1 font-lock-variable-name-face)) |
| 71 | + |
| 72 | + ;; syntax definitions |
| 73 | + ( ,(concat "^\\s-*\\_<syntax\\_>\\s-+" symbol-regexp) |
| 74 | + (1 font-lock-function-name-face) |
| 75 | + ("\\_<is\\_>" nil nil (0 font-lock-keyword-face t))) |
| 76 | + )))) |
| 77 | + |
| 78 | +(define-derived-mode livecode-mode prog-mode "LiveCode builder source" |
| 79 | + "Major mode for editing LiveCode builder source files" |
| 80 | + :syntax-table livecode-mode-syntax-table |
| 81 | + |
| 82 | + (setq font-lock-defaults livecode-font-lock-defaults) |
| 83 | + |
| 84 | + (set (make-local-variable 'comment-start) "--") |
| 85 | + (set (make-local-variable 'comment-end) "") |
| 86 | + ) |
| 87 | + |
| 88 | +(provide 'livecode-mode) |
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